Container for film rolls



1935. GOLDHAMMER 2,010,186

CONTAINER FOR FILM ROLLS Filed June a, 1955 2-Sheets-Sheet 1 lnvenfor: dza' By Afforneys Aug. 6, 1935. L. GOLDHAMMER 2,010,135

CONTAINER FOR FILM ROLLS Filed June 3, 1933 2 Sheets-Sheet 2 III I (I'III 'I'IIIIIIII'IIIIIA 'I'III B Afforne s w Patented Aug. 6, 1935 UNITED STATES CONTAINER. FOR FILM ROLLS .Leo Goldhainmer, Munich, Germany, assignor to I. G. Farbenindustrie Aktiengesellschaft,

Frankfort-on-the-Ma in, Germany.

Application June 3, 1933, Serial No. 674,243 In Germany June 9, 1932 2 Claims.

My present invention relates to a container for film rolls.

One of its objects is a container for film rolls provided with a device which allows withdraw- 5 ing from the container a film strip of the desired length. Further objects will be seen from the detailed specification following hereafter. Reference is made to the accompanying drawings in which Fig. 1 is a view in perspective of a container according to this invention,

Fig. 2 is a side elevation thereof seen from the side remote from the spectator when viewing Fig. 1, the lid being removed,

Fig. 3 is a view of the protective cap with the perforations for the adjustment of the desired length of film,

Fig. 4 shows the stop mechanism in its operative position, 0 Fig. 5 shows the same as Fig. 4 but the stop mechanism is released, a

Fig. 6 is a section on the line 6-'6 of Fig. 4 but with representation of the disk for adjusting the desired length of film.

The device according to this invention serves to facilitate the sale of film material.

With my container the dealer needs only to set the scale to the desired length of film and to pull the end of the film until the movement is stopped. In a preferred form of construction the container isprovided near the exit opening with a film cutting device which cleanly cuts the film strip required.

The object of this invention will be more fully g5 understood from .the following description when reading it in connection with the accompanying drawings.

A bracket 3- mounted on a base carries by a a retaining device 4 a drum 2 for holding the film.

10 Device 4 allows easy attachment of the drum 2 to the bracket 3 and detachment thereof, and

may consist, for instance, of a slotted lever 5 which engages a pin 6 fixed to the drum and thus rigidly connects the bracket with the drum.

45 By the bolts 1 and 8 which engage corresponding perforations in the bracket 3 the drum 2 is secured against rotation. The inner end of the bolt 1 is reduced to form a pin 9 serving as a bearing for the film roll In wound on the core 50 3a. From the film roll I the film is guided over a guide roller l2 to the sprocket drum I3 which is moved by the film II when this is withdrawn by pulling its end ll.

Though the device according to this invention 55 i to be placed in the dark room, the slit l5 through which the film is withdrawn, is lined with velvet so as to prevent entry of light into the drum 2 during the transport of the container.

On the side wall 2a of the drum there is mounted an adjusting dial I6, the marks of which 5 indicate the lengths of film to be withdrawn. The dealer need only adjust on this dial the mark corresponding to the length of film desired, and pull the free end M of the film until the movement is checked by a stop hereinafter 10 described more fully. The,film is then cut by means of the knife II. This knife is placed at such a distance from the slit [5, that always a short length of film is left outside the container. Near the knife on the base plate there is preferably provided a winding device similar to a rewinder, by' which the severed part of film may be wound.

The stop device for stopping the withdrawal of film is constructed as follows: On the axle I311 of the sprocket wheel I 3 there is mounted an eccentric I8. When the sprocket wheel I3 is rotated by withdrawing the film ll, theeccentric l8 moves up and down the pawl l9 mounted on the eccentric. On the side wall 2a there are mounted a toothed wheel 20 and a detent pawl 2|. The toothed wheel 20 co-operates with the pawls l9 and 2|. When the eccentric I8 is turned, the pawl l9 advances the toothed wheel 2|! tooth by tooth in the direction indicated by the outer arrow a; the detent pawl is engaged with the teeth of the wheel 20 by action of a spring 22. The actuation of the wheel 20 continuesuntil the pin .23 fixed on the toothed wheel 20, engages the stop lever 24, and (as may be seen from Fig. 9:) presses the lever 24 into the position in which its tooth 25 engages a tooth on disk 26 which is fixed on the axle of the eccentric. By these means the axle |3a of the eccentric and consequently the drum I3 are blocked and the withdrawal of film is stopped.

In order to readjust the device for further withdrawal of film, it is necessary to press down the release lever 21 fixed to the pawl l9. By this movement the pawls l9 and 2| are withdrawn from the teeth of the wheel 20 and this, by action of the spring 28, is returned to its original position that is to say, it is turned in the direction of the inner arrow b until the pin 28 fixed on the toothed wheel 20 engages the stop 30 (Fig. 5). The stop 30 is mounted on a disk 3|, arranged concentrically the toothed wheel 20. The disk 3| bears a pin 32 whichfits in any one of the perforations 33 of the protective cover 34. The disk 3| is rigidly connected with the axle 35 which cover 34. At its free end outside the protective cover the axle 35 bears a milled controlling knob 31 which must be pressed inwards against the action of the spring 38 (Fig. 6) when the device is adjusted to give the desired length of film. By this movement the pin 32 is removed from the perforations 33. Then the knob 31 is turned until the number corresponding with the desired length of film is in register with the mark 39 (see Fig. 2). If in this position the knob 31 is released, the pin 32 engages another of the perforations 33 and the device is adjusted to give the desired length of film. The scale disk l6 and the knob 31 may form one piece. 4

What 1 claim is:

l. A container for film which comprises a lighttight casing, a film roll mounted in said casing, a slot provided in said casing lined with velvet, a strip of said film protruding through said slot, an axle mounted in said casing, a sprocket drum mounted on said axle, said film passing over said sprocket drum so that the same is moved when withdrawing said film from said container, an eccentric mounted on said axle, a toothed wheel mounted on a second axle located at a substantial distancefrom said first axle, a pawl cooperating with said eccentric and said toothed wheel so as to advance the latter by one tooth on one revolution of the eccentric, means for bringing said pawl in and out of engagement with said toothed wheel, means for bringing said toothed wheel in its initial position after the desired withdrawn and means for causing said toothed wheel to be stopped after a predetermined length of revolution.

film length has been 2,010,186 protrudes through an opening 36 in the protective 2. A container for film which comprises a lighttight casing, a film roll mounted in said casing, a slot provided in said casing lined with velvet, a strip of said film protruding through said slot, an axle mounted in said casing, a sprocket drum mounted on said axle, said film passing over said sprocket drum so that the same is moved when Withdrawing said film from said container, an eccentric mounted on said axle, a toothed wheel mounted on a second axle located at a substantial distance from said first axle, a pawl cooperating with said eccentric and said toothed wheel so as to advance the latter by one tooth on one revolution of the eccentric a double arm lever pivotally mounted on said casing provided with a latching tooth, a disk mounted on said second axle, said disk being provided with a stop which can engage said latching tooth, a second pawl rotatably mounted on said casing, a spring fixed to said casing and pressing said pawls against said toothed wheel, a protective cap fitted over said toothed wheel and said pawls, said protecting cap being provided with small openings, a second disk provided on said second axle, a pin mounted on one side of said second disk and a stop mounted on the other side of said second disk, said pin engaging one of said small openings, apin provided on said toothed wheel, a spring mounted on said second axle pressing said toothed wheel away from said second disk and simultaneously towards the stop on said second disk, a scale disk in fixed connection with said second disk for adjusting said stop on said second disk to the length of film to be withdrawn from said container.

LEO GOLDHAMMER. 

